late 15c., "fine cloth used as a cover or wrapping for bread," from wrap (v.). As a type of women's garment, recorded from 1827. Meaning "plastic film or cellophane used as a wrap" is from 1930. Meaning "end of a filming session" is attested from 1970. Meaning "sandwich material folded up in flour tortilla" is by 1998. Figurative phrase under wraps "in concealment" is recorded from 1939.